ROBOTIC INVENTION SYSTEM (RIS) ENHANCEMENTS
This simple device allows you to control electronic devices by opening or closing the external feeding circuit of 440 W.
This is done by a latch-type relay inside the white brick, that opens or closes the circuit of the plug with a signal from the RCX. If the applyed tension is positive +(2,7), the circuit closes and stays closed. However, if the tension is negative, the circuit opens
By complementing this device with a special software (comming soon), you get something like a "Smart House System", being able to control different electric devices such as a microwave oven, a refrigerator or the lights of the house.
The only thing you need to build the Magic Control is a latch type relay with 5V or 6 V bobine tension.and as much intensity capability as possible. Mine is actually a 5V latch relay that handles 2 A. Good luck and be careful!
[ The information used to build this device was obtained from http://www.akasa.bc.ca/tfm/lego_wr.html ]
¿Would you like to control 6 motors and 3 sensors? ¿Or 5 sensors and 4 motors? ¿Or 7 sensors y 2 motors? This diagram explains how to do this using the RCX Expander 1.0:
|6 motors - 2 sensors|
|2 motors - 7 sensors|
|4 motors - 5 sensors|